Improvement in land-rollers



H. W.IV|ATH'EWS. Improvement i-n Land-Rollers. N0. 131,364, i Patented S'ep. 1T, 1872.

UNITED STATES PATET OFFICE.

HOLLOWAY W. MATHEWS, OF FRENGHTOWN, NEW JERSEY.

IMPROVEMENT IN LAND-ROLLES.

Specification forming part of Letters Patent No. 131,364, dated September 17, 1872.

To all whom it may concern:

Be it known that I, HOLLOWAY W. MA- THEWS, of Frenchtown, in the county of Hunterdon and State of New Jersey, have invented an Improvement in Land-Rollers, of which the following is a specification:

The invention relates to that class of machines for crushing clods and pulverizing soil which have two rolls placed abreast. These have hitherto been allowed an independentV self-adjustment to the unevenness of ground by various methods; but in practice these methods have all been found more or less objectionable. The invention consistsin providing a roller-frame with four pendent bearings, each provided with a vertical slot, and the corresponding parts of said slots in the same horizontal plane, so that the -journal of eaeh end of a roll can freely play up and down, and. so that the weight of frame and driver will, when on a level, be equally distributed over the several journals, but will be brought to bear upon any clod over which either end of roll passes, as hereinafter fully described.

Figure l is a top view.' Fig. 2 is a vertical section through line x w of Fig. l; and Fig'. 3 is a detail view of bearing-plates.

A represents the frame of a land-roll; B B, the front rolls, having journals b b,- G, the drivers seat, located between these rolls; and

D, the rear roll, arranged in frame E. F are bearing-plates for the rolls, attached to sides of bars G, and having the long vertical slot f. I are pins or bolts which pass across these slots. l

rIhe operation is as follows: When the rolls B are both in a horizontal position the weight of the driver and of frame E are evenly divided between the four journals; but when a clod passes under or toward either end of a roll, one-half the strain from frame and driver is brought to bear on the journal which is nearest the clod, and consequently upon the contacting surfaces of clod and roll. The mechanical essentials to this e'ect are thatthe slots j' shall be of equal length, and having all their corresponding points at the same relative elevation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, with two rolls and frame E, of the bearing-plates F, Whose equally long slots f f f f have all their corresponding parts in the same horizontal plane, as and for the purpose described.

HOLLOWAY MATHEWS. `Witnesses:

SoLoN C. KEMON, OHAs. A. Pnrrir. 

